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Feeder ideas
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Jensa  
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 More options May 22 2012, 3:08 am
From: Jensa <jens...@gmail.com>
Date: Tue, 22 May 2012 00:08:21 -0700 (PDT)
Local: Tues, May 22 2012 3:08 am
Subject: Feeder ideas
Hi all.
The only real problem I have with my Ultimaker these days is with the
material feeding. The stock feeder works 99% of the time, but ever so
often I'll come home to find a ruined 4-hour print due to the filament
being stripped. My plan is to use Scott's Ultistruder MK2 (http://
www.thingiverse.com/thing:19551) to solve this. Really looking forward
to getting it running!

Anyway - here's some new ideas on feeder building:
http://www.youtube.com/watch?v=iVsdjDCsMzc&feature=player_embedded

The video is from the MaxiFab project on Kickstarter, suggesting using
almost just basic parts and no hobbed bolt. Thoughts on how this will
work? He sounds very confident?

J


 
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Taylor Alexander  
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 More options May 22 2012, 3:12 am
From: Taylor Alexander <tlalexan...@gmail.com>
Date: Tue, 22 May 2012 00:12:28 -0700
Local: Tues, May 22 2012 3:12 am
Subject: Re: Feeder ideas

See also:
My MK6 filament drive. Based off the trusty reprap greg's wades design.
http://www.thingiverse.com/thing:20850

When I wrote that I'd been having a lot of issues, but I found out they
were hot end issues. The thing's been kicking ass ever since I fixed the
hot end problems. I had a 40+ hour print last week! :)


 
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Jensa  
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 More options May 22 2012, 5:11 pm
From: Jensa <jens...@gmail.com>
Date: Tue, 22 May 2012 14:11:22 -0700 (PDT)
Local: Tues, May 22 2012 5:11 pm
Subject: Re: Feeder ideas
Yup. That one's absolutely on my list to try. I'll try this one first
but, I just need to get that MK6 gear. But - you're working on that
one, right? ;-)

J


 
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Taylor Alexander  
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 More options May 22 2012, 5:53 pm
From: Taylor Alexander <tlalexan...@gmail.com>
Date: Tue, 22 May 2012 14:53:21 -0700
Local: Tues, May 22 2012 5:53 pm
Subject: Re: Feeder ideas

Oh right! Sorry, yes, I am! I modified it last week actually, but then got
pretty caught up in stuff for the Maker Faire. I have a few things to mail
out, so I'll get them all together and try to do that tomorrow. :)


 
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Florian Horsch  
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 More options May 29 2012, 6:22 am
From: Florian Horsch <florianhor...@googlemail.com>
Date: Tue, 29 May 2012 12:22:35 +0200
Local: Tues, May 29 2012 6:22 am
Subject: Re: Feeder ideas

Hi J,

are you running the v2 or already the v3 bolt?

From what I'm seeing the upgrade is really worth the money. It's:

a) easier to clean
b) better to assemble (no over-tightening possible)
c) more power (from sharper and more precise teeth)
d) no curling of filament (helix shaped rotation)
e) and therefore less friction in the tube (because the bite marks are on
the bottom and stay there)

See a photo here:
https://plus.google.com/116416453568555193309/posts/f9wwjdHqKT5

Cheers
Florian

On Tue, May 22, 2012 at 11:53 PM, Taylor Alexander <tlalexan...@gmail.com>wrote:

--
Florian Horsch
florianhor...@googlemail.com

 
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KodeMaestro  
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 More options May 29 2012, 10:14 am
From: KodeMaestro <kodemaes...@gmail.com>
Date: Tue, 29 May 2012 07:14:48 -0700 (PDT)
Local: Tues, May 29 2012 10:14 am
Subject: Re: Feeder ideas
How does it stop the helical feed pattern? I've noticed before that
the twisting of the filament is making it more difficult to feed, but
I can not see any way to prevent it.

On May 29, 11:22 am, Florian Horsch <florianhor...@googlemail.com>
wrote:


 
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Florian Horsch  
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 More options May 29 2012, 5:34 pm
From: Florian Horsch <florianhor...@googlemail.com>
Date: Tue, 29 May 2012 23:34:25 +0200
Local: Tues, May 29 2012 5:34 pm
Subject: Re: Feeder ideas

The helical feed pattern was created by the way the v2 hobbed bolt was made
(from a THREADED rod - therefor the twisting). The new bolt is CNC machines
as far as I know and has a strictly symmetrical and sharp pattern.

I will keep you posted, if I manage to do another round of comparison, but
from what I've already seen: 100% must have item.

For example: I've never seen a dirty v3 bolt so far. They just don't get
dirty, because I've rarely seen one failing (eating the filament), due to
better performance. And even if you're having something stuck in it:
Disassemble the whole thing with just one step (unclipping the delrin part)
and knock it several times against a table. That's it. There's no hobbed
area where it could stick to. Just sharp teeth :)

Cheers
Flo

--
Florian Horsch
florianhor...@googlemail.com

 
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